New York: A 28-year-old Indian-American businessman, who was gunned down by an unidentified assailant in his family-owned liquor shop in the US, has succumbed to his injuries, police said on Monday.

Amit Patel from Edison was shot and killed in New Jersey inside Roseway Liquors in Irvington yesterday.

Patel was alone in the liquor store, owned by his father, when the assailant shot at him at close range, police said.

There was no damage to the store or indication of a robbery and only one shot was fired, they said.

When police arrived at the store, they found Patel injured from a gunshot wound. He was later pronounced dead, acting Essex county prosecutor Carolyn A Murray and acting Irvington police director Musa Malik said in a statement.

According to close family friends, Amit's father was in the back office when the shooting took place.